Emerson Epsilon Eb Series Reference Manual page 112

Bus Voltage Group
Low DC Bus Enable
Epsilon Only
This parameter's default setting is enabled. When enabled, the drive will detect a low DC
bus at 60 VDC and will log a Low DC Bus Fault if a power down is not completed after
the low DC bus is detected. Setting this to disabled will disable the Low DC Bus Voltage
Fault. This will allow the drive to operate at a DC bus voltage below 60 VDC as long as
the logic power is supplied by the A.P.S. (Alternate Power Supply).
Figure 69: Epsilon Drive Ambient View
Encoder State Fault Enable
This prameter's default setting is enabled. When enabled, the drive will detect encoder state
faults. Refer to Fault Codes in the Diagnostic and Troubleshooting section of this manual. The
drive will not detect Encoder State faults when the fault is disabled. Disabling encoder faults
is necessary for some types of programable encoders where the state transitions are not
always deterministic.
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Setting Up Parameters
95